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nounany substance that can cause an allergytype of:
Definition that contains allergen
- allergy hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity
- ambrosia any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma
- ragweed any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma
- intradermal test a form of skin test in which the suspected allergen is injected into the skin
- reagin an immunoglobulin E that is formed as an antibody against allergens (such as pollen); attaches to cell membranes causing the release of histamine and other substances responsible for the local inflammation characteristic of an allergy
- bitterweed any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma
- contact dermatitis a delayed type of allergic reaction of the skin resulting from skin contact with a specific allergen (such as poison ivy)
- allergenic relating to or having the effect of an allergen
- patch test a test to determine allergic sensitivity by applying small pads soaked with allergen to the unbroken skin
- sensitise make sensitive to a drug or allergen